题目

When natural disasters like earthquakes happen, there's always a great need for us to r to it quickly. 答案:【1】respond把下列各数填入相应的大括号内:35,0,π3,-227,-0.55,2012,1.2121121112…(每两个2之间依次多一个1),1.•5,+68,-1.正整数{______}负分数{______}无理数{______}.
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